Hi everyone, I'm a newb from Taiwan, first i had to apologize for my poor English

I got some problem with my RB750Gr3
I just pressed the reset configuration button in winbox and reboot,since it reboot it never work until now
winbox can't access by IP address or MAC address and it's no show up in netinstall even I disable the firewall
I searched a lot of web page to rescue RB750Gr3 ,but it doesn't work by any method

here is some step what I've done in below
a) Disable Firewall
b) Connect PC to Port 1 on Mikrotik
c) Disable all other network interfaces on the PC - LAN, Wireless, Virtualbox
d) Set static IP of 192.168.88.3 subnet mask 255.255.255.0 gateway 192.168.88.1 on PC
e) Run NetInstall
f) Select "Net Booting"
g) Mark "Boot Serve Enabled"
h) Selected Client IP address of 192.168.88.1
i) Keep reset pressed while powering on
j) Keep holding the reset pin till a beep sounds. Release immediately
but it's no show up in netinstall

Is there any other way to solve my problem?

I had reference the website,but it doesn't work
https://blog.ligos.net/2016-12-27/Recov ... evice.html
viewtopic.php?f=13&t=77999

By the way
does anyone know the correct seconds to hold reset button?
I tried hold in for at-least 15-20 seconds (push reset and hold, plug in the power, and keep holding until the light goes off again and beep and release) -->doesn't work
30-30-30 -->doesn't work

Hello everyone
I had try follow this video but the netinstall dosen't show up my RB750Gr3
Is there any other way to solve this problem ?


https://www.youtube.com/watch?v=GIijZ6_i55g